[Finishes 60026330], puzzleNumber in congrats message + alignment of instructions text
Merge branch 'master' of https://github.com/code-dot-org/blockly into 60026330_puzzleNumber
merge
fix bad merge
Merge pull request #254 from nanan9177/tutorial

Changes to Level 2_14. Added back to previous level button, and level specific feedback.
merge again
Merge pull request #255 from cpirich/60026330_puzzleNumber

60026330 puzzle number
Updated feedback message for free play level.